Double shaft disc shears with automatic gap adjustment

Abstract

The utility model belongs to the technical field of double-shaft disc shears, in particular to a double-shaft disc shear with automatic gap adjustment, which comprises a base, the upper surface of the base is fixedly connected with a workbench, the middle part of the upper surface of the workbench is fixedly connected with a mounting frame, and the front of the mounting frame is fixedly connected with a transmission lifting mechanism. The meshing transmission of the transmission lifting mechanism motor drive main gear, first pinion and second pinion, combined with the linkage structure of the connecting block and the lifting rod, realizes the automatic adjustment of the gap between the upper and lower disc knives, eliminates the need for manual disassembly and adjustment, solves the problems of low efficiency and large error of traditional disc shear manual adjustment, and forms a closed-loop control through the communication between the hydraulic pump and the lifting rod, which can accurately fine-tune the lifting stroke and lock the gap. Combined with the limiting effect of the waist-shaped adjusting port on the second pinion, the gap adjustment accuracy is ensured, the defects such as plate shearing burr, tearing and uneven edge caused by gap deviation are effectively avoided, and the shearing quality is significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of dual-axis disc shears, specifically a dual-axis disc shear with automatic gap adjustment. Background Technology

[0002] In industries such as steel and non-ferrous metal processing, the longitudinal trimming and slitting of metal sheets such as strip steel and aluminum plates are crucial pre-processing steps for subsequent rolling, coating, and forming, directly affecting the dimensional accuracy and edge quality of the finished sheets. Dual-axis rotary shears, as the core equipment in this process, are widely used in automated operations such as pickling-cold rolling combined units, continuous annealing production lines, and color-coated sheet production lines due to their strong continuous shearing capacity and smooth cuts.

[0003] Traditional dual-axis rotary shears often adjust the blade gap by turning an adjusting screw with a wrench to move the blade holder, or by disassembling the blade shaft assembly and replacing adjusting shims of different thicknesses to change the relative distance between the upper and lower blades. This method is difficult to guarantee in terms of adjustment accuracy and cannot cope with gap deviations caused by variations in sheet thickness during production. Therefore, this invention provides a dual-axis rotary shear with automatic gap adjustment. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a dual-axis disc shear with automatic gap adjustment, including a base, a worktable fixedly connected to the upper surface of the base, an installation frame fixedly connected to the middle of the upper surface of the worktable, a transmission lifting mechanism fixedly connected to the front of the installation frame, and a protective cover fixedly connected to the outer surface of the transmission lifting mechanism. The transmission lifting mechanism includes a motor, a fixed plate is fixedly connected to the front end of the motor, a main gear is driven to the output end of the motor, a first gear and a second gear connected to the fixed plate are meshed on the outer surface of the main gear, a waist-shaped adjustment port adapted to the second gear is opened on the top of the inner wall of the mounting frame, a scissor-type bracket is rotatably connected to one side of the second gear and the main gear, an adjustment transmission gear is rotatably connected to the inner wall of the scissor-type bracket, a connecting block is fixedly connected to one side of the second gear, and lifting rods are fixedly connected to both sides of the upper surface of the connecting block.

[0006] Preferably, a hydraulic pump is fixedly connected to the middle of the upper surface of the mounting frame, and the hydraulic pump is connected to the lifting rod.

[0007] Preferably, the top and bottom of the inner wall of the mounting frame are rotatably connected to disc shear mounting rollers adapted to the first and second gears, and the outer surface of the disc shear mounting rollers is fitted with a plurality of disc blades.

[0008] Preferably, a mounting shell is fixedly connected to the other side of the upper surface of the worktable, and a plurality of feed guide rollers are fixedly connected to the inner wall of the mounting shell.

[0009] Preferably, a discharge guide frame is fixedly connected to the other side of the upper surface of the workbench.

[0010] Preferably, a waste inlet is provided in the middle of the upper surface of the workbench, and a waste collection box adapted to the waste inlet is slidably connected to one side of the front of the base.

[0011] Preferably, foot pads are fixedly connected to the four corners of the lower surface of the base.

[0012] 1. The present invention relates to a dual-axis disc shear with automatic gap adjustment. Through the meshing transmission of the main gear, first gear, and second gear driven by a motor in a transmission lifting mechanism, and in conjunction with the linkage structure of the connecting block and the lifting rod, the gap between the upper and lower disc blades is automatically adjusted without manual disassembly and adjustment. This solves the problems of low efficiency and large errors in manual gap adjustment of traditional disc shears. The hydraulic pump and the lifting rod form a closed-loop control, allowing for precise fine-tuning of the lifting stroke and locking of the gap. Combined with the limiting effect of the waist-shaped adjustment port on the second gear, the gap adjustment accuracy is ensured, effectively avoiding defects such as burrs, tears, and uneven edges caused by gap deviation in the shearing of sheet metal, significantly improving the shearing quality.

[0013] 2. The dual-axis disc shear with automatic gap adjustment described in this utility model forms a front-to-back coordinated guiding structure by setting up a feeding guide roller and a discharge guide frame: the front guide roller reduces the friction of the conveying plate and prevents deviation, while the rear guide frame avoids warping of the plate after shearing, ensuring stable conveying of the plate throughout the process, reducing rework caused by conveying deviation, improving shearing continuity, and the protective cover protects the gear transmission structure, preventing impurities from entering or personnel from accidentally touching it, thus improving operational safety; the waste inlet and waste collection box enable centralized collection of waste, eliminating the need for manual cleaning of the workbench, reducing maintenance workload, and ensuring a clean working environment. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the main body of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 This is a schematic diagram of the workbench structure in this utility model; Figure 4 This is a schematic diagram of the installation frame structure in this utility model; Figure 5 This is a schematic diagram of the transmission lifting mechanism in this utility model.

[0016] In the diagram: 1. Base; 2. Workbench; 3. Mounting frame; 4. Transmission lifting mechanism; 401. Motor; 402. Fixing plate; 403. Main gear; 404. First gear; 405. Second gear; 406. Waist-shaped adjustment port; 407. Scissor-type bracket; 408. Adjustment transmission gear; 409. Connecting block; 410. Lifting rod; 5. Protective cover; 6. Hydraulic pump; 7. Disc shear mounting roller; 8. Disc cutter; 9. Mounting shell; 10. Feeding guide roller; 11. Discharge guide frame; 12. Waste inlet; 13. Waste collection box; 14. Foot pad. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] Specific implementation examples are given below.

[0019] like Figures 1 to 5 As shown, a dual-axis disc shear with automatic gap adjustment according to an embodiment of the present utility model includes a base 1, a workbench 2 fixedly connected to the upper surface of the base 1, an installation frame 3 fixedly connected to the middle of the upper surface of the workbench 2, a transmission lifting mechanism 4 fixedly connected to the front of the installation frame 3, and a protective cover 5 fixedly connected to the outer surface of the transmission lifting mechanism 4. The transmission lifting mechanism 4 includes a motor 401. A fixed plate 402 is fixedly connected to the front end of the motor 401. A main gear 403 is driven to the output end of the motor 401. A first gear 404 and a second gear 405, which are connected to the fixed plate 402, mesh on the outer surface of the main gear 403. A waist-shaped adjustment port 406, which is adapted to the second gear 405, is opened at the top of the inner wall of the mounting frame 3. A scissor-type bracket 407 is rotatably connected to one side of the second gear 405 and the main gear 403. An adjustment transmission gear 408 is rotatably connected to the inner wall of the scissor-type bracket 407. A connecting block 409 is fixedly connected to one side of the second gear 405. Lifting rods 410 are fixedly connected to both sides of the upper surface of 09. After the motor 401 is started, its output end drives the main gear 403 to rotate. The main gear then drives the meshing first gear 404 and second gear 405 to rotate synchronously. When the second gear rotates, it will move within the limit range of the waist-shaped adjustment port 406. At the same time, the transmission stability is ensured by the scissor-type bracket 407 and the adjusted transmission gear 408. The connecting block 409 connected to the second gear will drive the lifting rod 410 to rise and fall with the movement of the gear, thereby providing power for the subsequent adjustment of the cutter head gap. The protective cover 5 prevents impurities from entering the gear and lifting mechanism during the entire transmission process, thus preventing transmission failure.

[0020] like Figure 2 and Figure 4 As shown, a hydraulic pump 6 is fixedly connected to the middle of the upper surface of the mounting frame 3. The hydraulic pump 6 is connected to the lifting rod 410, and the hydraulic pump 6 and the lifting rod 410 form a hydraulic circuit. When the gear transmission drives the lifting rod to initially move, the hydraulic pump can finely adjust and lock the lifting speed and stroke of the lifting rod by controlling the pressure and flow of the internal hydraulic oil. For example, after the gap is adjusted to the correct position, the hydraulic pump can maintain a stable pressure to prevent the lifting rod from moving due to vibration during the shearing process, and ensure that the cutter head gap is always kept at the set value.

[0021] like Figure 2 and Figure 4 As shown, the top and bottom of the inner wall of the mounting frame 3 are rotatably connected to disc shear mounting rollers 7 that are adapted to the first gear 404 and the second gear 405. Several disc blades 8 are sleeved on the outer surface of the disc shear mounting rollers 7. When the first gear 404 and the second gear 405 are running, they will drive the adapted disc shear mounting rollers 7 to rotate, which in turn will drive the disc blades 8 sleeved on the rollers to rotate synchronously. When the transmission lifting mechanism is adjusted, it will indirectly change the relative distance between the upper and lower sets of disc shear mounting rollers, that is, adjust the gap between the disc blades 8 to adapt to different thickness plates. Multiple sets of disc blades can simultaneously achieve multiple shearing, improving shearing efficiency.

[0022] like Figures 1 to 3As shown, a mounting shell 9 is fixedly connected to the other side of the upper surface of the workbench 2. Several feeding guide rollers 10 are fixedly connected to the inner wall of the mounting shell 9. The plate to be sheared is fed in from one side of the mounting shell 9. The feeding guide rollers 10 inside the shell will rotate as the plate moves. On the one hand, the rolling of the guide rollers reduces the friction of the plate during conveying and avoids scratching the surface of the plate. On the other hand, the limiting effect of multiple sets of guide rollers ensures that the plate is conveyed along the preset path, preventing the plate from deviating and causing the shearing position to shift, thus ensuring the shearing accuracy.

[0023] like Figures 1 to 3 As shown, a discharge guide frame 11 is fixedly connected to the other side of the upper surface of the workbench 2. The sheet material after being cut by the disc cutter 8 will enter the discharge guide frame 11. The guide frame limits the material by its own contour to prevent warping or displacement due to stress release after cutting, and guides the sheet material to be kept flat and discharged from the equipment, which is convenient for subsequent winding or transfer processes.

[0024] like Figures 1 to 3 As shown, a waste inlet 12 is provided in the middle of the upper surface of the workbench 2. A waste collection box 13 that matches the waste inlet 12 is slidably connected to one side of the front of the base 1. Metal waste generated during the shearing process will fall off with the shearing action. The waste inlet 12 on the workbench 2 provides a falling channel for the waste. The waste will eventually fall directly into the waste collection box 13 that matches it. When the waste in the collection box accumulates to a certain amount, it can be directly pulled out from the front of the base 1 for cleaning, so as to avoid the waste accumulating on the workbench or near the cutter head and affecting the shearing operation and equipment operation.

[0025] like Figures 1 to 3 Each of the four corners of the lower surface of the base 1 is fixedly connected with a foot pad 14. The foot pads 14 at the four corners of the lower surface of the base 1 can increase the friction between the equipment and the ground, preventing the equipment from shifting due to high-speed operation and vibration during shearing operations. On the other hand, they can also act as a buffer, absorbing the vibration generated during the operation of the equipment and reducing the impact of vibration on precision components such as the worktable and cutter head. At the same time, they can also prevent the base from directly contacting the ground and causing wear.

[0026] During operation, the sheet material to be sheared is guided by the guide roller 10 inside the mounting housing 9 and transported to the shearing area inside the mounting frame 3 in a stable and precise manner, avoiding deviation or surface scratches during transport. The motor 401 is started, and its output end drives the main gear 403 to rotate, which in turn drives the meshing first gear 404 and second gear 405 to rotate synchronously, driving the upper and lower sets of disc shear mounting rollers 7 and disc blades 8 to rotate, thereby realizing the shearing of the sheet material. At the same time, the second gear 405 moves in the waist-shaped adjustment port 406, and drives the lifting rod 410 to rise and fall through the connecting block 409. With the precise control and locking of the lifting stroke by the hydraulic pump 6, the gap between the upper and lower disc blades 8 is automatically adjusted to adapt to the shearing needs of sheet materials of different thicknesses.

[0027] The sheared sheet metal is guided by the discharge guide frame 11 to prevent warping due to stress release and is discharged from the equipment in a flat state for easy processing in subsequent processes. The metal scrap generated during shearing falls into the scrap collection box 13 through the scrap inlet 12 on the workbench 2, achieving centralized collection of scrap and ensuring a clean working environment and stable equipment operation. The foot pads 14 at the four corners of the base 1 provide cushioning, vibration reduction, and anti-slip positioning to ensure the smooth operation of the entire device.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A dual-axis disc shear with automatic gap adjustment, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to a workbench (2), the middle part of the upper surface of the workbench (2) is fixedly connected to an installation frame (3), the front of the installation frame (3) is fixedly connected to a transmission lifting mechanism (4), and the outer surface of the transmission lifting mechanism (4) is fixedly connected to a protective cover (5). The transmission lifting mechanism (4) includes a motor (401), a fixed plate (402) is fixedly connected to the front end of the motor (401), a main gear (403) is connected to the output end of the motor (401), a first gear (404) and a second gear (405) connected to the fixed plate (402) are meshed on the outer surface of the main gear (403), the top of the inner wall of the mounting frame (3) is provided with a waist-shaped adjustment port (406) adapted to the second gear (405), a scissor-type bracket (407) is rotatably connected to one side of the second gear (405) and the main gear (403), an adjustment transmission gear (408) is rotatably connected to the inner wall of the scissor-type bracket (407), a connecting block (409) is fixedly connected to one side of the second gear (405), and lifting rods (410) are fixedly connected to both sides of the upper surface of the connecting block (409).

2. The dual-axis disc shear with automatic gap adjustment according to claim 1, characterized in that: A hydraulic pump (6) is fixedly connected to the middle of the upper surface of the mounting frame (3), and the hydraulic pump (6) is connected to the lifting rod (410).

3. A dual-axis disc shear with automatic gap adjustment according to claim 1, characterized in that: The top and bottom of the inner wall of the mounting frame (3) are rotatably connected to disc shear mounting rollers (7) that are adapted to the first gear (404) and the second gear (405), and the outer surface of the disc shear mounting rollers (7) is fitted with a number of disc blades (8).

4. A dual-axis disc shear with automatic gap adjustment according to claim 1, characterized in that: A mounting shell (9) is fixedly connected to the other side of the upper surface of the workbench (2), and a number of feed guide rollers (10) are fixedly connected to the inner wall of the mounting shell (9).

5. A dual-axis disc shear with automatic gap adjustment according to claim 1, characterized in that: A discharge guide frame (11) is fixedly connected to the other side of the upper surface of the workbench (2).

6. A dual-axis disc shear with automatic gap adjustment according to claim 1, characterized in that: The workbench (2) has a waste inlet (12) in the middle of its upper surface, and a waste collection box (13) that is compatible with the waste inlet (12) is slidably connected to one side of the front of the base (1).

7. A dual-axis disc shear with automatic gap adjustment according to claim 1, characterized in that: Foot pads (14) are fixedly connected to the four corners of the lower surface of the base (1).

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